cnic: remove redundant assignment to variable ret

The variable ret is being assigned with a value that is never read,
the assignment is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/broadcom/cnic.c

@@ -1918,7 +1918,6 @@ static int cnic_bnx2x_iscsi_ofld1(struct cnic_dev *dev, struct kwqe *wqes[],
 	ret = cnic_alloc_bnx2x_conn_resc(dev, l5_cid);
 	if (ret) {
 		atomic_dec(&cp->iscsi_conn);
-		ret = 0;
 		goto done;
 	}
 	ret = cnic_setup_bnx2x_ctx(dev, wqes, num);